CN111756552B - Electric energy supply device - Google Patents

Electric energy supply device Download PDF

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Publication number
CN111756552B
CN111756552B CN202010213249.6A CN202010213249A CN111756552B CN 111756552 B CN111756552 B CN 111756552B CN 202010213249 A CN202010213249 A CN 202010213249A CN 111756552 B CN111756552 B CN 111756552B
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CN
China
Prior art keywords
supply device
energy supply
digital
electronic device
terminal
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Application number
CN202010213249.6A
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Chinese (zh)
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CN111756552A (en
Inventor
斯特凡·瓦格纳
菲利普·诺伊格鲍尔
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Wago Verwaltungs GmbH
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Wago Verwaltungs GmbH
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Publication of CN111756552A publication Critical patent/CN111756552A/en
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Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/12—Arrangements for remote connection or disconnection of substations or of equipment thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/10—Current supply arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/08—Protocols for interworking; Protocol conversion
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/10—Plc systems
    • G05B2219/15—Plc structure of the system
    • G05B2219/15097—Power supply
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/20—Pc systems
    • G05B2219/25—Pc structure of the system
    • G05B2219/25425—Personal computer
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/50—Reducing energy consumption in communication networks in wire-line communication networks, e.g. low power modes or reduced link rate

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Computer Security & Cryptography (AREA)
  • Programmable Controllers (AREA)
  • Communication Control (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)

Abstract

The invention relates to an electrical energy supply device (1) for supplying electrical energy to an electrical component from an energy source, wherein the energy supply device has at least one communication unit (3), the energy supply device is configured for data communication with an external computer device (8) via the communication unit, wherein the energy supply device has a terminal (9) for outputting electrical energy for supplying the electrical component with energy, wherein the energy supply device has at least one controllable digital or analog output terminal (4) and/or at least one digital or analog input terminal (5) as further terminal, wherein the digital or analog output terminal can be controlled by the external computer device (8) via the communication unit in the case of the controllable digital or analog output terminal (4), and wherein an input value can be read from the input terminal by the external computer device via the communication unit in the case of the digital or analog input terminal (5).

Description

Electric energy supply device
Technical Field
The present invention relates to an electronic device. The electronic device can be, for example, an electrical energy supply device and/or an electronic protection switch for supplying electrical energy to an electrical component from an energy source. The invention relates in particular to the field of electronics for industrial plants, in particular for industrial controllers such as memory-programmable control plants. The invention also relates to a communication unit of an electronic device and an assembly (Sortiment) with a plurality of communication modules.
Background
The energy supply device is used to supply electrical energy at a specific voltage level, for example 12 volts or 24 volts, and a specific voltage type, for example a direct voltage, wherein the energy supply device supplies the electrical energy, for example, from a current supply network, for example an alternating voltage network. For this purpose, the electronic device has corresponding components for converting and/or rectifying the electrical energy supplied by the current supply network, for example in the form of a clocked conversion circuit when a switching network device is involved; and/or having at least one transformer.
Disclosure of Invention
In the field of industrial current supply devices, there is a high demand for reliability and functionality of such electronic devices. The present invention is based on the object of providing a further improved electronic device.
In order to achieve the object, the electronic device can have control electronics with at least one program memory with a computer program stored therein and a computer for executing the computer program. The computer program has a software control function for controlling functions of the electronic device, such as a current supply function. In this way, an electronic device having a plurality of functions, which can be implemented in software, respectively, can be realized. The electronic device thus also has an updating capability, i.e. it can store further developed computer programs without changing the hardware.
The electronic device can have a parameter memory in which parameters for defining the functionality of the electronic device can be stored. By means of such parameters, specific details of the function of the electronic device can be set by the user as desired and adapted to the respective application.
In an advantageous embodiment, the electronic device has at least one communication unit coupled to the control electronics, and is configured for data communication with an external computer device via the communication unit. In this way, a data exchange between the external computer device and the electronic device is possible, for example in order to read out operating data of the electronic device, or to set and/or control specific functions of the electronic device by means of the external computer device. Furthermore, if the electronic device has a parameter memory, variable parameters may be stored in the electronic device.
The external computer device can be any computer, such as a laptop or a PC (personal computer). The external computer means can also be control means of a memory-programmable control device or other means of such a memory-programmable control device. The external computer device can be a device connected to a data bus. For this purpose, the electronic device can be coupled with the data bus via a communication unit.
According to one advantageous embodiment of the invention, the communication unit is configured as a replaceable communication module, wherein the communication module has gateway functionality by means of which a bidirectional conversion takes place between an external communication protocol and/or physical layer used by the external computer device and an internal communication protocol and/or physical layer used between the communication module and the computer, wherein the communication module supports either exactly one external communication protocol or a plurality of external communication protocols. Thus, for a computer of an electronic device, the communication module operates with an internal communication protocol and/or physical layer, while for an external computer device, the communication module operates with an external communication protocol and/or physical layer. By means of the gateway functionality, the communication module is able to translate not only from an external communication protocol to an internal communication protocol, but instead from an internal communication protocol to an external communication protocol. The same applies to the conversion between the inner physical layer and the outer physical layer. The bit transport layer in the OSI layer model is herein understood to be the physical layer.
This has the following advantages: the communication module and thus its gateway functionality and in particular the supported external communication protocols and/or physical layers can be replaced simply by: the communication module is removed from the electronic device and another communication module is connected to the electronic device. In this way, the electronic device can be matched to different external communication protocols and/or physical layers without great expense. The internal communication protocol can be, for example, any Fieldbus communication protocol, such as Modbus-RTU.
Another advantage of such a modular communication scheme is that the same communication module can be used first for a specific electronic device and at a later time for another electronic device or other devices. The costs associated with the communication interface are correspondingly not related to the electronic device or other device, but to the communication module.
According to an advantageous embodiment of the invention, the external communication protocol is a bus protocol or a P2P protocol, which supports data communication of a plurality of external computer devices connected to a common data bus. This has the following advantages: the communication module enables the electronic device to have bus capability. The external communication protocol can be, for example, any Fieldbus communication protocol, such as IO-Link, ethernet/IP, etherCAT, interbus, safetyBusP, profibus, sercos, modbus-RTU, etc.
The communication module can be configured to perform periodic and/or aperiodic communication with a computer of the electronic device.
According to an advantageous embodiment of the invention, the communication module is configured to read out a flag indicating the device type of the electronic device from the control electronics of the electronic device via the internal communication protocol and to transmit it to the external computer device via the external communication protocol. This has the following advantages: in particular in data transmission environments with a plurality of communication subscribers, such as when a communication module is connected to a data bus, an electronic device of this type can always be identified independently of the internal and external communication protocols used. In this way, the electronic device can be identified as such by other data transmission subscribers independently of the respectively plugged-in communication module.
According to an advantageous embodiment of the invention, it is provided that the communication module is configured such that the commands for block parameterization of the control electronics received by the external computer device via the external communication protocol are converted into the internal communication protocol, so that the control electronics, in particular the parameter memory of the control electronics, can be described by a plurality of parameters by means of the commands for block parameterization. In this way, the new parameter set is activatable in aggregate. This has the following advantages: even when using an internal communication protocol which does not itself recognize the same instructions for block parameterization, the electronic device can be parameterized by means of such block parameterization in a "block" by means of the instructions received via the external communication protocol, i.e. a plurality of parameters can be transmitted and stored in the electronic device quickly and simply by means of the instructions.
According to an advantageous embodiment of the invention, the communication module is configured to likewise convert the data storage commands received by the external computer device via the external communication protocol into selected functions of the internal communication protocol in a multi-step manner, wherein the parameter data of the control electronics are read out by the communication module and transmitted to the external computer device and/or the parameter data are written by the external computer device into the control electronics via the communication module. In this way, the electronic device can be made suitable for externally received data storage instructions even when the internal communication protocol does not recognize such instructions of the same function. The received data storage command is then converted by the communication module into the existing selected function of the internal communication protocol, which can likewise be carried out in multiple steps, i.e. by a plurality of functions of the internal communication protocol which are executed one after the other in steps. By means of the data storage instructions, the current parameter set of the control electronics of the electronic device can be read out and transmitted to the external computer device, where it can then be stored. The re-parameterization of the electronic device can then be performed, for example, by: the new parameter set is transmitted to the control electronics by means of a block parameterized command. The backup functionality of the parameter set of the electronic device can be realized in particular via the communication module by means of the data storage instructions.
According to an advantageous embodiment of the invention, the communication module has or allows password protection, so that an external computer device which communicates with the electronic device via the communication module must perform password authentication at least when accessing specific functions of the control electronics. In this way, improved safety against mishandling and especially against manipulation of the electronic device is provided. The increased security is achieved in the communication module by means of password protection by means of which at least any unauthorized access to specific functions of the control electronics is prohibited. Before the communication module enables access to a specific function of the control electronics, the external computer device must first perform a cryptographic authentication, that is to say, transmit the correct password to the communication module.
According to an embodiment of the invention, the electronic device is configured as an electrical energy supply device for supplying electrical energy to the electrical component from an energy source and/or as an electronic protection switch.
According to an embodiment of the invention, the electrical energy supply device is configured as a network device, for example as a network device of an industrial controller, in particular as a network device of a memory-programmable control device, as a switching network device and/or as an uninterrupted current supply device (USV).
According to an advantageous embodiment of the invention, the electronic device is designed as an electrical energy supply device for supplying electrical energy to the electrical component from the energy source and/or as an electronic protection switch. The electrical energy supply device can be configured as a network device, for example as a network device of an industrial controller, in particular as a network device of a programmable memory control device, as a switching network device and/or as an uninterrupted current supply device (USV). This has the following advantages: the electronic device can be realized in various variants. The same modular communication scheme with exchangeable communication modules can be used here in each case. In other words, the communication module can be used irrespective of the manner in which the electronic device is implemented. In this connection, a flag indicating the device type of the electronic device, which flag is readable from the control electronics of the electronic device, can distinguish, for example, between the electronic device of the industrial controller, the switching network device and/or the uninterrupted current supply device.
According to an advantageous embodiment of the invention, it is provided that the communication module is externally pluggable to the housing of the electronic device by means of an electrical plug connection. This allows for tool-free simple replacement of the communication module and simple placement of the communication module. The communication module can, for example, have a latching element, by means of which the communication module is latched at the housing of the electronic device and in this way is fixed at the housing of the electronic device.
The communication module can have its own control computer which executes a computer program stored in the communication module. In this way, an efficient conversion between external and internal communication protocols is possible in particular, especially when this requires specific computational effort and/or memory requirements. The communication module can also be configured without its own control computer, which is advantageous, for example, if: the external communication protocol is identical to or only slightly different from the internal communication protocol. For example, the communication module can in this case have only a hardware-type matching circuit, for example for matching the voltage levels of the physical layer.
According to an advantageous embodiment of the invention, the electronic device has a hardware-based identification circuit by means of which the control electronics can be identified: connected to the electronic device is a communication module with or without its own control computer. This has the following advantages: the electronic device can automatically determine with low effort: what type of communication module is connected to the electronic device. Correspondingly, the electronic device can automatically adapt its communication function to the respectively connected communication modules. In the case of a communication module without its own control computer, the computer of the electronic device can assume specific control functions of the communication module, for example to control the control inputs of the communication module to set the data transmission direction.
According to an advantageous embodiment of the invention, the electronic device is configured to replace the communication module (hot plug) during continuous operation. Thus, the flexibility of the electronic device to be matched with different requirements is further improved. The electronic device can be configured to match automatically changing interface parameters of the communication interface of the electronic device to the communication module after the communication module has been replaced. The matching of the communication parameters can also be requested by the newly plugged communication module.
The object indicated at the outset is also achieved by a communication unit for an electronic device of the type mentioned at the outset. The communication unit is configured as a replaceable communication module, wherein the communication module has gateway functionality by means of which a bidirectional conversion takes place between an external communication protocol and/or a physical layer used by the external computer device and an internal communication protocol and/or a physical layer used between the communication module and the computer, wherein the communication module supports either exactly one external communication protocol or a plurality of external communication protocols. This can also achieve the aforementioned advantages.
The invention also relates to an assembly having a plurality of communication modules of the type described above, wherein the communication modules of the assembly each have the same internal communication protocol and/or physical layer, but have different external communication protocols and/or physical layers. With such an assembly, the electronic device with the possibility of replacing the communication module can be adapted to different external communication protocols and/or physical layers according to the requirements.
The assembly can be supplemented with a communication module having the same communication protocol and/or physical layer as the internal communication protocol and/or physical layer as the external communication protocol and/or physical layer. The communication module may be configured without a control computer.
If, for example, the IO-Link protocol is used as the external communication protocol, the communication module can be configured to perform the following functions:
The starting phase is as follows: IO-Link communication (identification block) is parameterized and initialized with data read from the electronic device.
Process data: the periodic Modbus queries are performed synchronously with the IO-Link queries or asynchronously with the IO-Link queries.
Parameter data: conversion from IO-Link and reverse conversion to Modbus, for which events are forwarded to the IO-Link host by constant bias conversion from IO-Link index to Modbus address, mapping from Modbus error report to IO-Link error report.
Block parameterization-BP:
If the communication module has obtained the IO-Link BP start instruction, the communication module places the electronic device in BP state.
The electronic device does not directly accept the written parameter values in the activated configuration, but temporarily stores them.
If a BP stop instruction is sent and there is no write query error during the BP, the written parameter value becomes active.
The result of BP sends IO-Link host.
Data storage-DS
The communication module reads out an index (fixedly defined address) from the electronic device in response to a query of the IO-Link host and organizes a ds_index table, which is provided to the IO-Link host.
If the parameter set is written, the communication module places the electronic device in BP state (the electronic device handles the following query such as block parameterization).
If the parameter set is read, it is processed as a normal read query.
Providing a CRC from a parameter set of the electronic device.
The electronic device has terminals for outputting electric energy to supply energy to the electric components (consumers). The terminals may also be referred to as current supply output terminals of the electronic device. According to one advantageous embodiment, the electronic device has at least one controllable digital or analog output terminal and/or at least one digital or analog input terminal as further terminals. In the case of a controllable digital or analog output terminal, the controllable digital or analog output terminal may be controlled by an external computer device via a communication unit. In the case of a digital or analog input terminal, the input value can be read out from the input terminal by an external computer device via a communication unit. This has the following advantages: at least one simple remote I/O functionality can additionally be provided via the electronic device. The digital or analog output terminals are correspondingly the outputs of such remote I/O units and the digital or analog input terminals are the inputs of the remote I/O units. Correspondingly, at least simple control and monitoring tasks can be performed by means of the electronic device, so that in many cases no additional I/O modules are required in the device. In this case, the already existing I/O connections of the electronic device, which are already present in nature, for example for specific standard functions such as the display of the correct voltage level ("DC-OK"), can be used to implement digital or analog input terminals and/or digital or analog output terminals. Accordingly, the hardware costs required for the electronic device are not increased when providing the mentioned remote I/O functionality.
By means of the remote I/O functionality, the electronic device can be used as a digital external station (Au β enstelle) which can be used for status or function monitoring by means of data communication, for example. The remote I/O functionality can be implemented by pure software extensions, that is to say by corresponding code of a computer program. Therefore, no additional hardware is required.
If the digital or analog input terminals are configured as digital input terminals, only binary input values (0 and 1) are provided. If the digital or analog input terminals are configured as analog input terminals, an input value having a specific value range, for example having 8 bits (0 to 255) or 12 bits (0 to 4095), is provided depending on the resolution of the analog-to-digital converter used.
If the digital or analog output terminals are configured as digital output terminals, only binary output values (0 and 1) can be set. If the digital or analog output terminals are configured as analog output terminals, an output value having a specific value range, for example having 8 bits (0 to 255) or 12 bits (0 to 4095), is provided depending on the digital-to-analog converter used.
According to an advantageous embodiment of the invention, it is provided that the electronic device has exactly one controllable digital or analog output terminal. The cost of remote I/O functionality is thereby minimized, primarily because separate controllable digital or analog output terminals are typically inherently required in such electronic devices.
According to an advantageous embodiment of the invention, it is provided that the electronic device has exactly one digital or analog input terminal. The cost of remote I/O functionality is thereby minimized, primarily because separate controllable digital or analog input terminals are typically inherently required in such electronic devices.
According to an advantageous embodiment of the invention, the electronic device has a parameter memory in which parameters for defining the functionality of the electronic device can be stored, wherein the functionality of the digital or analog input terminals and/or the functionality of the controllable digital or analog output terminals can be set by means of at least one parameter. This has the following advantages: the functionality of the digital or analog input terminals or the digital or analog output terminals may be selected by the user and set accordingly. Therefore, the flexibility of the electronic device in use is further improved. The functionality of the digital or analog input terminal can be converted between two different functions or a greater number of different functions, for example. The functionality of the digital or analog output terminal can be converted between two functions or a greater number of functions, for example.
According to an advantageous embodiment of the invention, it is provided that the functionality of the digital or analog input terminal is settable at least to a fixed predetermined standard input function by means of at least one parameter, and/or that the functionality of the controllable digital or analog output terminal is settable at least to a fixed predetermined standard output function by means of at least one parameter. This simplifies the choice of the functionality of the digital or analog input terminal or the digital or analog output terminal for the user.
According to an advantageous embodiment of the invention, the standard output function is to output a signal to a controllable digital or analog output terminal, which signal shows: whether the voltage output from the electronic device to the terminal for outputting electric power is within an allowable range. Correspondingly, a digital or analog output terminal can be set to a standard function as a "DC-OK" terminal.
According to an advantageous embodiment of the invention, the standard input function is to switch on/off the electronic device or the energy output to the terminals for outputting electrical energy in a remotely controllable manner via digital or analog input terminals. Correspondingly, the digital or analog input terminal can be used in standard functions as a remote control terminal for an electronic device.
In an advantageous embodiment, the electronic device has at least one electronic overcurrent protection switch which is implemented in software by means of a computer program. Advantageously, the electronic device can thus be extended with an at least substantially software-implemented overcurrent protection switch functionality. Thus, the electronic device is functionally integrated in one device with at least a single channel electronic protection switch. This has the following advantages: in general, an external overcurrent protection switch (circuit breaker) can be dispensed with. Thereby, the user can save costs and construction space. In addition, flexibility is improved for the user. Furthermore, the external connection is simplified, since no additional connection effort is required for the external overcurrent protection switch.
According to an advantageous embodiment of the invention, it is provided that the electronic overcurrent protection switch is implemented solely by means of a computer program without the need for additional hardware components. Thus, hardware that is inherently available in electronic devices is used in order to implement the functionality of electronic over-current protection switches. The protection switch software can therefore use only hardware which is also used by the software itself for controlling the electronic device or in particular the energy supply device in order to have full functional capabilities.
According to an advantageous embodiment of the invention, it is proposed that the electronic overcurrent protection switch comprises a function for switching off an output current output by the electronic device and/or a function for limiting the output current output by the electronic device to a predetermined current value. Here, switching off can include permanently switching off the output current or temporarily (briefly) switching off the output current. The same applies to the limitation of the output current, which can optionally be permanent or temporary. The function of the electronic over-current protection switch can also include switching off the output current and limiting the output current.
According to an advantageous embodiment of the invention, it is provided that the output current output by the electronic device is switched off or limited by controlling the electronic device on the primary side. For example, the primary side can directly control a main converter, for example a transformer. This allows for a simple implementation of the electronic over-current protection switch functionality. Therefore, it is possible to stop the supply of energy and thus the output of the output current, or to set the output current smaller by: the actual main converter of the electronic device is no longer actively operated on the primary side.
In order to realize the electronic overcurrent protection switch functionality, the electronic device has a current measuring device in the output branch. The current measuring device can determine that: whether the output current is too high and correspondingly whether the electronic overcurrent protection switch has to react in order to perform a switching off or limiting of the output current.
According to an advantageous embodiment of the invention, it is provided that the electronic overcurrent protection switch has a monitoring device for the output current of the electronic device in terms of exceeding a boundary current value, wherein the output current is switched off or limited to a predetermined current value, for example to the boundary current value, if the boundary current value is exceeded. The output current can be determined by the current measuring device mentioned. By means of a computer, it is possible to compare: whether the measured output current exceeds a boundary current value. Correspondingly, the computer can take corresponding countermeasures, such as switching off the output current or limiting the output current.
According to an advantageous embodiment of the invention, it is provided that the output current is not switched off or limited after a predetermined triggering time during which the output current exceeds the limit current value continuously or for the most part. This has the following advantages: the electronic overcurrent protection switching functionality does not necessarily react every short time the boundary current value is slightly exceeded, but only after a predetermined triggering time.
According to an advantageous embodiment of the invention, the electronic device has a parameter memory in which parameters for defining the functionality of the electronic device can be stored, wherein the electronic overcurrent protection switch can be configured according to the user's desire by means of one or more parameters settable in the parameter memory. This has the following advantages: the protection switch functionality can be adapted to the needs of the user. The triggering time and/or the boundary current value can be set as parameters in particular. By means of the setting possibility of the triggering time, the "agile" and "lazy" protection switch features can optionally be set.
According to an advantageous embodiment of the invention, the parameters can be set in a parameter memory of the electronic device by means of an external computer device via the communication unit. Thus, the protection switch functionality can also be set remotely. Furthermore, a simple possibility of changing the parameters is provided.
According to an advantageous embodiment of the invention, the overcurrent protection switch can be signaled via the light-emitting device feedback and/or via the communication interface in response to, for example, triggering a limitation and/or a shut-off of the output current of the output. For this purpose, a light-emitting signal display, such as an LED, which displays the load of the electronic device in normal operation, can be used to advantage. However, special states, such as protection switch functionality, can also be signaled via a different flashing code (out of normal operation). The already mentioned communication unit of the electronic device can be used as a communication interface.
The electronic device can have a protocol function in which the activation of the electronic over-current protection switch functionality is protocol. For example, the protocol can be: the switching off of the output current and/or the limiting of the output current is performed by an electronic overcurrent protection switch when and for how long. The protocol file can be read out by an external computer device via a communication unit of the electronic device. Thereby providing improved diagnostic feasibility for the user.
According to an advantageous embodiment of the invention, the electronic device has a housing, on which a carrier rail fastening element is provided, by means of which the electronic device can be fastened to a carrier rail of an electrical installation technology. In this way, other components of the electronic device, such as an industrial control apparatus, can be fixed to the carrier rail, for example arranged beside the other devices. The electronic device can be snapped onto the carrier rail, for example.
The indefinite article "a" is not to be construed as a number in the sense of the present invention. Thus, for example, when referring to a component, this should be interpreted in the sense of "at least one component". If the angle is annotated in degrees, the angle annotation refers to a circle of 360 degrees (360 °). If a computer is mentioned, the computer can be configured to execute the computer program, for example in the sense of software. The computer can be configured as a commercially available computer, for example as a PC, laptop, notebook, tablet or smartphone, or as a microprocessor, microcontroller or FPGA, or as a combination of these elements. If regulation is mentioned, the regulation differs from control in that: the feedback or feedback with the measured or internal value is regulated, by means of which in turn the regulated output value produced is influenced in the sense of a closed regulating circuit. In the control, the variables are simply controlled without such feedback or feedback.
Drawings
The invention is illustrated in detail below with reference to an embodiment using the accompanying drawings.
The drawings show:
FIG. 1 shows a schematic diagram of an electronic device; and
Fig. 2 shows a schematic diagram of a communication module; and
Fig. 3 shows a schematic diagram of an arrangement of an electronic device and a communication module.
Detailed Description
The reference numerals used in the figures have the following meanings:
1. electronic device
2. Shell body
3. Communication unit
4. Digital or analog output terminal
5. Digital or analog input terminal
6. Computer with a memory for storing data
7. Data bus
8. External computer device
9. Energy supply output terminal
10. Input terminal
11. Program memory
12. Parameter memory
13. Primary side part
14. Transformer
15. Secondary side part
16. Control electronics
30. Communication module
31. Plug connector
32. Internal hardware interface
33. Control computer
34. Program memory
35. Parameter memory
36. External hardware interface
37. Plug connector
I. output current
U.S. output voltage
R1. resistance
R2. resistance
Fig. 1 shows an electronic device 1 with a housing 2. In the housing 2, control electronics 16 of the electronic device 1 are provided. In the housing 2 there are also power electronic components 13, 14, 15. The electronic device has an input terminal 10 by means of which the electronic device 1 is connected to a current supply network, for example an ac voltage network. The electronic device 1 is used for converting electrical energy absorbed from a current supply network via an input terminal 10 into electrical energy output on the output side, which is provided at an energy supply output terminal 9. At the energy supply output terminal 9, for example, an output current I can be provided together with an output voltage U, for example a dc voltage.
The power electronic components 13, 14, 15 may comprise a primary side component and a secondary side component. Furthermore, a transformer may be present between the primary side part and the secondary side part.
The control electronics 16 have a computer 6, a program memory 11 and a parameter memory 12. The computer 6 is connected to a program memory 11 and a parameter memory 12. The program memory 11 stores a computer program. The computer program has a software control function for controlling the current supply function of the electronic device 1, for example a regulating function for keeping the output voltage U and/or the output current I constant. In the parameter memory 12, parameters are stored that the user specifically defines the functionality of the electronic device, for example in order to select different options or sub-functions in the software control function. The computer 6 executes the computer program and takes into account the corresponding parameters from the parameter memory 12. The computer 6 controls the power electronics 13, 14, 15 such that a desired output current I and/or a desired output voltage U is provided at the power supply output terminal 9.
As described above, the computer performs electronic over-current protection switch functionality and/or remote I/O functionality via additional software functions present in the computer program.
With respect to the remote I/O functionality, the computer 6 is connected with additional terminals of the electronic device, including at least one controllable digital or analog output terminal 4 and at least one digital or analog input terminal 5. Via a digital or analog input terminal 5, the computer 6 is able to read in an input signal, for example a digital value or an analog value. At the output terminal 4, the computer 6 is capable of outputting a digital or analog output signal. The terminals 4, 5 do not have to be connected directly to the computer 6, but can be isolated from the computer via a suitable interface circuit.
The computer 6 is also connected to the communication unit 3. Via the communication unit 3, the computer 6 and thus the electronic device 1 is capable of data communication with an external computer device 8. In the embodiment shown, the computer means 8 are connected to a data bus 7. The electronic device 1 is likewise connected to the data bus 7 via the communication unit 3. In this way, data communication can be performed between the electronic apparatus 1 and the external computer apparatus 8.
In the case of remote I/O functionality, the external computer device 8 is able to control the digital or analog output terminal 4 via the communication unit 3. The computer 6 receives control commands from an external computer device 8 via the communication unit 3 and controls the digital or analog output terminals 4 in accordance with the control commands. The external computer device 8 is capable of reading out input values from the digital or analog input terminal 5 via the communication unit 3. The computer 6 receives a read-out command from the external computer device 8 via the communication unit 3, reads in an input value from the digital or analog input terminal 5, and transmits the input value to the external computer device 8 via the communication unit 3 by means of a response message. Furthermore, the functionality of the digital or analog output terminal 4 and/or the digital or analog input terminal 5 can be set via parameters stored in the parameter memory 12.
The communication unit 3 shown in fig. 1 can be configured as a replaceable communication module 30, for example as shown in fig. 2. The communication module 30 has an electrical plug connection 31 by means of which the communication module 30 can be electrically connected to the electronic device 1 and in particular to the control electronics 16 of the electronic device. The communication module 30 has a further electrical plug connection 37 by means of which the communication module 30 can be connected directly or indirectly to the external computer device 8, for example via the data bus 7.
In the communication module 30, there can be an own control computer 33. In this case, it is advantageous if the communication module 30 has its own program memory 34 and likewise its own parameter memory 35, wherein the memories are each connected to the control computer 33, so that the control computer 33 can access the memory contents.
The communication module 30 has gateway functionality by which bi-directional translation is made between an external communication protocol and/or physical layer used by the external computer device 8 and an internal communication protocol and/or physical layer used between the communication module 30 and the computer 6. The bidirectional conversion is essentially performed and controlled by the control computer 33. For this purpose, the control computer 33 is connected to the plug connector 31, for example via the internal hardware interface 32, on the one hand, and to the further plug connector 37, for example via the external hardware interface 36, on the other hand. Via the internal hardware interface 32, hardware signal matching can be performed between the control computer 33 and the internal physical layer used. Via the external hardware interface 36, hardware signal matching can be performed between the control computer 33 and the external physical layer used.
The structure of the communication module 30 illustrated in fig. 2 is particularly advantageous in the following cases: the internal and external communication protocols are inherently different and the gateway functionality is complex, such that an own control computer 33 is required. If the difference between the internal communication protocol and the external communication protocol is not so great or even the same communication protocol is used, the communication module 30 can also be constructed without its own control computer 33. In this case, the program memory 34 and the parameter memory 35 can also be omitted. Likewise, the internal hardware interface 32 can be discarded or combined with the external hardware interface 36.
Fig. 3 shows a partial view of such an embodiment of a communication module 30 in combination with the electronic device 1. In this case, the communication module 30 is configured not to have its own control computer. Basically, the communication module 30 then has only the external hardware interface 36. Depending on the embodiment, the specific control functions of the external hardware interface 36 must therefore be performed under the control of the processor, which is not possible there due to the lack of a control computer of its own in the communication module 30. In this connection, an advantageous embodiment is described with reference to fig. 3, in which processor-controlled actuation of the external hardware interface 36 is possible via the computer 6 of the electronic device 1.
The interface connection between the computer 6 and the external hardware interface 36 is shown, which can be configured, for example, in the form of a serial interface having a transmission line T X and a reception line R X. Also shown are power supply line V CC (operating voltage for hardware interface 36) and GND (ground line). Also shown are I/O ports of the computer 6, which are capable of functioning not only as output terminals but also as input terminals. If the I/O port operates as an output terminal, the computer 6 can thereby control the control terminal of the external hardware interface 36, for example, in order to set the data transmission direction: transmitting/receiving. If the I/O port is operated as an input terminal, a digital or analog signal can thus be read in.
Fig. 3 shows a hardware-based recognition circuit, by means of which the control electronics 16 or the computer 6 can recognize: connected to the electronic device 1 is a communication module 30 with its own control computer 33 or a communication module 30 without its own control computer 33. Thus, the computer 6 is able to automatically determine whether the computer has to perform a control function via the output signals of the I/O ports or not.
In this case, the hardware identification circuit has a resistor R2 installed in the electronic device 1, which establishes a connection between V CC and the I/O port (Pull-Up resistor). In the communication module 30 there is a further resistor R1 which establishes a connection between GND and I/O port (Pull-Down resistor). The computer 6 is able to recognize from the voltage levels formed based on the resistance relations R1/R2 read in via the I/O ports: the communication module 30, which does not have its own control computer, is connected. The corresponding communication module 30 with its own control computer is constructed without such a resistor R1 that another voltage level is formed at the I/O port, which can likewise be recognized by the computer 6.

Claims (12)

1. An electrical energy supply device (1) for supplying electrical energy to an electrical component from an energy source, wherein the energy supply device (1) has at least one communication unit (3), through which the energy supply device (1) is configured for data communication with an external computer device (8), wherein the energy supply device (1) has a terminal (9) for outputting electrical energy for supplying energy to the electrical component, characterized in that the energy supply device (1) has a remote I/O unit through which remote I/O functionality is provided, whereby the electrical energy supply device (1) can be used as a digital external station, wherein the energy supply device (1) has at least one controllable digital or analog output terminal (4) as an output of such a remote I/O unit and/or at least one digital or analog input terminal (5) as an input of such a remote I/O unit, as a further connection terminal, wherein in the case of a controllable digital or analog output terminal (4) the digital or analog output terminal (3) can be used as an analog output terminal (8) via a digital computer device or an analog terminal (8) of such a remote I/O unit, the input value can be read out from the digital or analog input terminal by an external computer device (8) via the communication unit (3).
2. The energy supply device according to claim 1, characterized in that the energy supply device (1) has exactly one controllable digital or analog output terminal (4).
3. The energy supply device according to claim 1 or 2, characterized in that the energy supply device (1) has exactly one digital or analog input terminal (5).
4. Energy supply device according to claim 1 or 2, characterized in that the energy supply device (1) has a parameter memory (12) in which parameters for defining the functionality of the energy supply device (1) can be stored, wherein by means of at least one parameter the functionality of the digital or analog input terminal (5) and/or the functionality of the controllable digital or analog output terminal (4) can be set.
5. Energy supply device according to claim 4, characterized in that the functionality of the digital or analog input terminal (5) is settable at least to a fixed preset standard input function by means of at least one parameter and/or the functionality of the controllable digital or analog output terminal (4) is settable at least to a fixed preset standard output function by means of at least one parameter.
6. The energy supply device according to claim 5, characterized in that the standard output function is to output a signal to the controllable digital or analog output terminal (4), which signal shows: whether the voltage (U) output by the energy supply device (1) to the terminal (9) for outputting the electrical energy is within an allowable range.
7. The energy supply device according to claim 5, characterized in that the standard input function is to switch on/off the energy supply device (1) or to output energy to a terminal (9) for outputting the electrical energy in a remotely controllable manner via the digital or analog input terminal (5).
8. The energy supply device according to claim 1 or 2, characterized in that the communication unit (3) is configured as a replaceable communication module (30) which can be plugged onto the energy supply device (1) by means of an electrical plug connection (31).
9. The energy supply device according to claim 1 or 2, characterized in that the electrical energy supply device is configured as a network device and/or as an uninterrupted current supply device.
10. The energy supply device according to claim 1 or 2, characterized in that the electrical energy supply device is configured as a network device of an industrial controller.
11. The energy supply device according to claim 1 or 2, characterized in that the electrical energy supply device is configured as a network device of a memory-programmable control apparatus.
12. The energy supply device according to claim 1 or 2, characterized in that the electrical energy supply device is configured as a switching network device.
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US11822303B2 (en) 2023-11-21

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